let c = {
  typeId: 0,
  typeName: "虚拟根节点",
  typeParentId: -1,
  typeLevel: 1,
  children: [
    {
      typeId: 1,
      typeName: "酒饮",
      typeParentId: 0,
      typeLevel: 1,
      children: [
        {
          typeId: 2,
          typeName: "果汁饮料",
          typeParentId: 1,
          typeLevel: 2,
          children: [
            {
              typeId: 3,
              typeName: "椰子汁",
              typeParentId: 2,
              typeLevel: 3,
              children: [],
            },
            {
              typeId: 4,
              typeName: "梨汁",
              typeParentId: 2,
              typeLevel: 3,
              children: [],
            },
          ],
        },
        {
          typeId: 5,
          typeName: "液态常温奶",
          typeParentId: 1,
          typeLevel: 2,
          children: [
            {
              typeId: 6,
              typeName: "常温纯牛奶",
              typeParentId: 5,
              typeLevel: 3,
              children: [],
            },
            {
              typeId: 7,
              typeName: "常温风味牛奶",
              typeParentId: 5,
              typeLevel: 3,
              children: [],
            },
          ],
        },
      ],
    },
    {
      typeId: 8,
      typeName: "清洁用品",
      typeParentId: 0,
      typeLevel: 1,
      children: [
        {
          typeId: 9,
          typeName: "杀虫剂",
          typeParentId: 8,
          typeLevel: 2,
          children: [
            {
              typeId: 10,
              typeName: "电蚊香片",
              typeParentId: 9,
              typeLevel: 3,
              children: [],
            },
            {
              typeId: 11,
              typeName: "喷雾驱虫",
              typeParentId: 9,
              typeLevel: 3,
              children: [],
            },
          ],
        },
      ],
    },
  ],
};
